US619563A - Steam-boiler furnace - Google Patents

Description

No. 6I9,563. Patented Feb. l4, I899. E. E. GORDON.

STEAM BOILER FURNACE.

(Application filed. Apr. 29, 1898.)

{No Model.)

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UNITED STATES PATENT OFFICE.

EDWARD E. GORDON, OF NEWARK, OHIO.

STEAM-BOILER FURNACE.

SPECIFICATION forming part of Letters Patent No. 619,563, dated February 14, 1899.

Application filed April 29, 1898. Serial No. 679,238. (No model.)

To all whom it may concern:

Be it known that I, EDWARD E. GORDON, a citizen of the United States, residing at East Newark, in the county of Licking and State of Ohio, have invented new and useful Improvements in Steam Boiler Furnaces, of which the following is a specification.

This invention relates to steam-boiler f urnaces, and has for its object to provide a furnace of simple construction and which shall be easily accessible for inspection, repair, and for the purpose of cleaning and which in operation will effect an economy in the consumption of fuel and an equal distribution of the heat to the boiler.

To these ends my invention consists in the features and in the novel construction, combination, and arrangement of parts hereinafter described, and particularly pointed out in the claims following the description, reference being had to the accompanying drawings, forming a part of this specification, wherein Figure 1 is a vertical longitudinal central sectional view of my improved steam-boiler furnace. Fig. 2 is a transverse sectional view taken on the line 2 2 of Fig. 1, showing the hot-'air outlets in the rear of the bridge-wall. Fig. 3 is a similar view on the line 3 3 of Fig. 1, and Fig. 4 is a similar view on the line 4 4 of the same figure.

Referring to the drawings, the numeral 1 indicates the furnace-walls, and 2 a boiler of any usual or suitable construction supported therein. Under the forward end of the boiler is arranged a fire-box 3, at the rear end of which is the bridge-wall 4. In the bridgewall 4 is formed a vertical flue 5, which at its upper end communicates with a horizontal flue 6, that is in connection with the fire-flue 7 by means of aplurality of apertures 8. Connected with the lower end of the flue 5 is a hot-air duct 9, which extends rearwardly over the bottom of the furnace-pit 10, and at its rear end is provided with an air-inlet 11. Projecting through the air-inlet 11 into the air-duct is asteam-jet nozzle 11, which when in use is supplied with steam from the boiler. Arranged in rear of the bridge-wall 4 is a baffle-wall 12, constructed in the form of an arch that extends over the fire-pit between the side walls of the furnace. The baffle-wall 12 extends up to within a very short distance of the bottom of the boiler and is curved on top to conform to the shapethereof, leaving a contracted space 13 for the uninterrupted escape of the lighter burned gases.

Arranged in the rear of the baffle-wall is a checker-work partition 14, formed of firebricks so arranged as to form numerous tortuous passages between the bricks, and in rear of the rear end of said partition is a vertical wall 15, between which and the partition is a narrow flue 16.. As shown, the upper end of the wall 15 extends slightly below the top of the partition 14, and in rear of the wall 15 is a flue 17, communicating with the rear ends of the boiler tubes or flues.

The operation of my improved furnace is as follows: The heat, flames, and products of combustion pass from the fire-box over the bridge-wall 4 and strike against the baffle-wall 12, by which latter they are deflected backward toward the bridge-wall and downward into the fire-pit, and thence rearward and upward, where they enter the boiler tubes or flues and after passing through the latter escape by the usual smoke-stack. The heated gases and products of combustion in their passage through the fire-pit come in contact with the entire length of the air-duct 9 and heat the air therein, and the heated air passes up through the flues 5 and 6 and is discharged through the openings 8 into the fire-flue 7, where it mingles with the unconsumed gases, which are thus revivified by the oxygen of the heated air and are consumed. The heat, smoke, and burned gases then pass into the fire-pit and the highly-heated and lighter portions thereof then seek to pass through the checker-board partition 14, where they are re tarded and the heat absorbed by the bricks, which operate to throw-off such heat against the rearportion of the boiler in a uniform and steady manner, and thus cause both ends of the boiler to be heated equally. The heavy incombustible gases pass up through the flue 16, then up through the flue 17 and from thence through the boiler tubes or flues. By these means the heat from the fire-box is fully utilized, the gases being thoroughly consumed before their entrance into the boiler tubes or flues and converted into heat. The heat is equally distributed to the under side of the boiler and held sufficiently in check to permit of its maximum heating effect being utilized.

In some instancesas, for example, during bad weather, when the atmosphere is heavy and laden with moisturethe natural inflow of air through the hot-air duct is insufficient to properly promote the combustion of the unconsumed gases, and in such case a jet of steam is injected into the air-duct by means of the steam-jet 11, and induces an artificial inflow of air.

The furnace constructed as above described furnishes ready access to every part, whereby the furnace may be readily cleaned and inspected.

Having described my invention, What I claim is 1. In a steam-boiler furnace, the combination with the fire-pit, of the bridge-wall arranged between the furnace fire-box and said pit and provided with a flue communicating with the fire-flue by means of a plurality of openings form ed in the rear face of the bridge wall, an air-duct arranged longitudinally in the furnace-pit and communicating at its rear end with the atmosphere and at its front end with the flue in the bridge-wall, a steam-jet arranged in the air-inlet end of the air-duct, and a checker-work partition surrounding the air-duct whereby the heat is retarded and heats the air in its passage through the d not, substantially as described.

2. In a steam-boiler furnace, the combination with the fire-pit, of the bridge-wall arranged between the fire-box and said pit and provided with a flue communicating with the fire-flue in rear of the bridge-wall bya plurality of openings, an air-duct arranged in the pit and connected with said bridge-wall flue, and a baffle-wall arched above the pit in rear of the bridge-wall and extending entirely across the pit and nearly to the bottom of the boiler, wherebya contracted space is formed between said baffle-wall and the bottom of the boiler for the escape of the lighter burned gases, substantially as described.

3. In a steam-boiler furnace, the combination with the fire-pit, of the bridge-wall arranged between said pit and the fire-box, a baffle-wall arranged in rear of the bridge-wall above the fire-pit, and a checker-work partition arranged in rear of the baffle-wall, and extending from the bottom of the fire-pit nearly to the bottom of the boiler and consistin g of fire-bricks loosely laid as shown to form numerous tortuous passages, and a bridgewall arranged in rear of the ChGOkGP-WOlk partition, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

EDWARD E. GORDON.

lVitnesses:

WM. H. MARTIN, THOMAS BLIND.

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